Typewriting machine



March 18, 1924.

J. WALDHEIM TYPEWRI'IING MACHINE Filed Jan. 27

FIGJ.

34 I v /IIIIIIIIIIIIIIIJ (\\\\\\\\\\\\\\\\\\\w "'IIIIIIIIIIIIIIIII Patented Mar. 18, 1924.

UNITED STATES PATENT OFFICE.

JOHN WALDHEIM, OF ELIZABETH, NEW JERSEY, ASSIGNOR T0 UNDERWOOD TYPE- WRIT'EB COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

r rnwnrrme- MACHINE.

Application filed January 27, 1920.

To all whom it may concern:

Be it known that I, Join: VVALDHEIM, a citizen of the United States, residing in Elizabeth, in the county of Union and State of New Jersey, have inventeo certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to devices for holding and positioning carbon-sheets or duplicating material to be used between work sheets in manifolding upon a typewriting machine. The invention may be used in connection with combined typewriting and computing machines which perform addition and subtraction, but is herein illustrated as used in connection with a so-called continuous billing machine of the general type disclosed in the patent to WVernery & Smith, No. 1,132,055, granted March 16, 1915.

It is customary in typewriting machines to use a bichrome ribbon having black and red color-stripes, and, when a computing device is used, the ribbon mechanism is usually connected to the computing mechanism in such a way that any numbers that are subtracted are typed in red upon the work-sheet; thus the work-sheet bears its own evidence that such numbers have been substracted by the'computing mechanism.

This expedient, however, has been necessarily limited to the single sheet upon which the ribbon directly prints; and the difliculty has existed that 011 the carbon copies, which are almost invariably manifolded at the same time as the ribbon copy, there is nothing to indicate whether any particular number has been written in black or in red; that is to say, in computing, there is nothing to indicate whether it has been added or subtracted by the computing mechanism.

Many eiforts have been made to avoid this difiiculty. It has been proposed to have large figure types in typewriting-computing machines, which are called into use only when subtraction is being performed by the computing mechanism, so that the carbon copies will show by the large figures thereon that certain numbers were subtracted.

It has also been proposed to print a special sign before each number that is to be subtracted, so that the carbon copies shall give evidence accordingly.

It has also been proposed that a special Serial No. 354,475.

mark shall be printed under each digit that is typed, where such digits are subtracted.

Similar proposals have been made to give analogous special significance where computations were not efl'ected, as is the case in the aforesaid continuous billing machines.

The object of my invention is to provide for a distinction to be made upon the carbon copies of the main or original work sheet, without necessitating the use of a special set of types, or a special sign or other special device or mechanism in the typewriting machine.

To attain this end and other ends, I provide means whereby the characters typed in certain columns upon the work-sheet are typed in a distinctive color on the carbon copies, while the remaining numbers or data are typed in the standard color. For this purpose, all numbers that are typed in some distinctive color upon the original worksheet are typed in a column or columns by themselves as is customary. With the carbon-sheet is provided an overlying strip provided with a coating which will produce typed characters of the desired distinctive color, so that any characters written in the column covered by the strip will appear in the desired distinctive color upon the carbonsheet, the remaining portion being the normal color oi the carbon.

For the purpose of keeping the carbonoverlying strip in accurate alignment and register with the desired column upon the worksheet, the carbon-sheet may be fas tened thereto in such a way that the sheet ant strip play the part of an integral sheet. Tie carbon-sheet may be of the usual width in some cases, that is tosay, the width of the work-sheet, with the result that, if the carbon-sheet is'properly inserted in the usual manner, the strip will fall upon the proper column. To enable the strip to be adjusted to the proper column laterally of the sheet, the carbon-sheet may be provided with openings or slits through which the carbon-strip may be threaded. These openings, if desired, may be arranged in pairs in extensions of the carbon-sheet beyond the end of its carbon surface. The openings may be ofiset or staggered, thus permitting the strip to be inserted at any one of a large number of positions.

Where the invention is used in connection with a fan-fold billing machine of the type referred to, the usual carbon-paper carriage may have clamps upon its carbon-clip bars, and each clamp may be provided with a scale, thus enabling the strip to be readily adjusted laterally and to be held in place by a clamp instead of by the openings or slits, above referred to.

l/Vhere it is desired that matter typed upon the original worksheet in certain columns shall be omitted from the carbon copy, the overlying strip, instead of being a manifolding strip, may be a strip adapted to prevent the carbon imprint from appearing on the manifolded copy.

The subject-matter of the carbon-sheet illustrated on Sheet 1 of the drawings and herein described has been made the subject of a divisional application, Serial No. 144,307, filed February 12, 1921.

Other objects and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a diagrammatic fragmentary perspective view of a continuous billing machine of the type referred to, and showing the invention applied thereto; and

Figure 2 is a sectional side view, on a larger scale, of a carbon-clip bar, the clamp and the carbon-sheet and strip held thereby.

When it is desired to make a. carbon copy upon a work-sheet of the matter to be typed upon an original sheet, a carbon-sheet, is interposed between the two work-sheets, and the sheets are fed together around a platen 13, being held thereto by the usual feedrolls 14. This enables type-bars 15, striking through a ribbon 16, to print not only upon the outer sheet, but also upon the inner sheet, the characters carried by the typebars 15. Normally, the types print through a black stripe 17 of the ribbon 16, but, under some circumstances, that is to say, in some columns, the red stripe 18 of the ribbon 16 causes red characters to be printed upon the outer worksheet. To enable the characters printed by the red stripe 18 to be shown in red on the carbon copy, means is pro vided to hold a strip of red manifolding paper bet-ween the carbon-sheet and the carbon copy at the column where the red printing is effected and with its reproducing surface lying next to the carbon copy, thus causing the characters typed upon that work-sheet to appear in red, i. e., in the color of the strip. Any typed mark of the reproducing surface of the carbon-sheet in the column of the orginal or ink-ribbon work-sheet, which is aligned with the manifolding strip, is received upon the back of said strip, and therefore fails to appear upon the carbon copy.

If it is desired that characters typed upon a column of the ink-ribbon work-sheet shall not appear upon the carbon copy, a blank strip may be employed to protect the worksheet from the carbon surface of the carbonsheetin alignment with such column.

lVhere there is employed a carriage 31 of a continuous billing machine, as shown in Figure 1, there may be employed a carbonsheet 32 clipped in the usual way to one of the carbon-clip bars 33 by means of a clamp 34:, pivoted on the bar 33. In practicing the present invention upon this machine, the clamp 3 1 extends over a considerable len th of its clipbar 33. so as to enable a specially colored carbon-strip 35, or a blank strip 36, to be positioned at any point upon the clip-bar 33 and clamped in place over the carbon-sheet 32.

Tn machines of the type referred. to, webs 3?, between which the carbon-sheets 32 lie, are usually drawn over a rear bar 33, forming the end of an extension of the carriage 31 and which comprises the rails 39 upon which the carbon-paper-carriage lO slides and upon which are mounted the clip-bars 33. The rear bar 38 is usually provided with adjustable side guides or gages ell, in order to guide the webs accurately to the platen 13; and there are usually also provided adjustable side gages 42 upon the carbon-paper-ea1'riage 40. These side gages 4:1 and El-2 serve to align the webs 37 very accurately, and thus to permit the strips 35 and 36 to be aligned very accurately with reference to them.

To enable aligning of strips 35 and 36 upon the webs in their proper columns to be rapidly effected, each clamp 3a is shown as provided with a scale 43, graduated to correspond with the divisions of the usual front scale at across which the carriagepointer 45 travels. The scale 43 enables the strips 35 and 36 to be quickly and correctly located at different column positions along the carbon-holding bars 33 and relatively to the length of the platen 13, to which the bars 33 are parallel.

In machines of the type shown in Figure 1, the platen is liftable, because it is mounted in a swing-frame d6, journaled on an axle 47, to enable the platen to be swung up and the work-sheets, in the form of webs 37 to be drawn forward and gaged against an end-gage forming an upper extension (not shown) of a front paper-table 4L8.

The strips 35 and 36 have the functions of printing in a contrasting color and in preventing printing, respectively. Since the webs 37 are never moved backwardly upon the carbon-paper-carriage 40, the strips 35 and 36 will always lie upon their proper columns if properly adjusted upon the clipbar or bars 33.

Depending upon the character of copies desired, there may be strips 35 and 36 not only for the first carbon-copy web 50, but also for the second carbon-copy web 51, and

these strips may be the same or different, as desired, thus enabling one column to be omitted from one carbon-web and another column to be omitted from the carbon-web 51, or colors to be changed, if desired. Since the carbon-paper carriage 40 always travels rectilinearly upon its rails 39, it draws the strips 35 and 36 rearwardly in straight lines when pushed rearwardly by the usual handle 52, thus always tending to straighten the strips 35 and 36 in their proper columns.

It will be apparent that the scale 43 on the clamp 34 may also be used to position the carbon-sheet 32 relatively to the carbon-clip bar, or, in other words, crosswise of the machine.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a letter-feeding revoluble platen, a letter scale therefor, and means for feeding superposed plies of web around the platen, of a carbon-sheet carrier in rear of the platen and movable backwardly away from the platen to shift interposed carbonsheets along the web, said carbon-carrier comprising a carbon-holding bar and a clip extending along the bar, both a full-width carbon-sheet and narrow columnar or zone carbon-strips superposed upon the carbonsheet and all secured by their bottom edges by means of said clip, whereby to advance said sheet and strips bottom ends first along said web, and means comprising a strip positioning scale on said carbon-carrier auxiliary to said platen scale and marked in accordance therewith but distant from the printing field of the typewriter for locating the zone strips by their bottom ends laterally relatively to said platen scale, preparatory to covering up the strips and scale by the work-sheet, whereby predetermined zones or columns, the position of which is determined by the use of said platen scale,

may be typed in contrasting colors upon certain plies of web.

2. In a typewriting machine, the combination with a revoluble platen, means for feed-- ing superposed plies of web around the same, a letter-feeding carriage, and a carriage scale, of a carbon-sheet carrier in rear of the platen and movable backwardly away from the platen to shift carbon-sheets along' the web, said carbon-carrier comprising a carbon-holding bar to hold the carbons by their bottom edges, means co-operative with said bar for securing both a full-width carbon-sheet and narrow zone strips superposed upon the carbon-sheets, and a scale on said carbon-carrier auxiliary to said carriage scale but distant from the platen and corresponding in location and divisions with said carriage scale, for locating the zone strips laterally relatively to the carriage scale.

3. In a typewriting machine, the combination with a platen, a letter-feeding scale to co-operate therewith, and means for guiding plies of web over the platen, of a carbonpaper holder to shift interleaved sheets of carbon along the web, said carbon-paper holder having devices distant from the printing field of the typewriting machine for holding by their ends both full-width carbon-sheets and narrow carbon columnar or zone strips, and means auxiliary to said platen scale but arranged at said carbonholding devices for locating said zone strips laterally relatively to said platen scale preparatory to securing said strips.

4;. In a typewriting machine, the combination with a platen and means for feeding superposed plies of web over the platen, of a shifter having holders extending between the plies of web, and both full-width carbonsheets and narrow carbon columnar or zone strips attached by their ends to said holders, said strips of color contrasting with said full-width carbon-sheets.

JOHN WALDHEIM.

Witnesses:

J ENNIE P. THoRNn, Enrm B. Luann. 

